What was found
CAPTAIN REPORTED THAT AFTER TAKEOFF AT GDL THE (AUTO SLATS FAIL) LIGHT TURNED ON IN LOW SPEED (150-230 KIAS) AND FLIGHT CONTROLS WITH VIBRATION. THE STALL COMPUTERS WERE TESTED AND SLATS ACTUATORS FAILED IN BOTH COMPUTERS. AIRCRAFT WAS SENT TO THE HANGAR AND BOTH COMPUTERS WERE REPLACED AND TESTED IAW MM 27-80-08 PAGES 209 AND 210, BUT FAILURE CONTINUED DUE TO A GAP OF 1 TO 1.5 DEGREES BETWEEN FLAPS/SLATS LEVER, WHEN DIAL IS SELECTED TO FLAPS POSITION. DURING OVERNIGHT CHECK, THE SLATS ACTUATORS WERE REPLACED AND TESTED IAW MM 27-80-08 PAGES 208/209, ALL CORRECT.